Pilgrim SDK by Foursquare - Location data to understand & engage with your customers
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
MightySignal Top SDKs - Most used SDKs in top 200 free iOS apps. Learn what to use.
Radar - Radar - Location sharing for friends and teams.
bunq Apps - Create and market apps that work with bank accounts
LocationAPI - Instantly locate any device w/ WiFi, celltowers & IP address